3 years ago

A car travles 75 miles on 3 gallons of gasoline how much gasoline will it need to go 342 miles

1 answer:

8 0

If u find how many miles for 1 gallon, there are 25 miles so then divide 342 by 25 and u get 13.68 gallons

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Alex787 [66]

Answer:

-2

Step-by-step explanation:

3 0

3 years ago

Ulleksa [173]

(-2d^2+s)(5d^2-6s)
= (-2d^2*5d^2 + s*5d^2 -2d^2*-6s + s*-6s
= -10d^4 + 5sd^2 + 12sd^2 - 6s^2
=-10d^2 + 17sd^2 - 6s^2
This is the final result

7 0

3 years ago

Talja [164]

Step 1. (5+4-2)x(-2)
Step 2. (7)x(-2)
Step 3. -14

7 0

3 years ago

amm1812

Answer:

$s(t)=(ln|7|+ln|2|)\,ft$

Step-by-step explanation:

Acceleration is second derivative of distance and are related as:

$a(t)=\frac{d^2s}{dt^2}\\\\\frac{d^2s}{dt^2}=\frac{-1}{(t+2)^2}\\$

Integrating both sides w.r.to t

$v(t)=\frac{ds}{dt}=\frac{1}{t+2} +C\\$

Using initial value

$v(0)=\frac{1}{2}\\\\\frac{1}{2}=\frac{1}{0+2} +C\\\\C=0\\\\\frac{ds}{dt}=\frac{1}{t+2}$

We have to calculate the distance covered in time interval [0,5], so:

$\int\limits^5_0 \frac{ds}{dt}=\int\limits^5_0 {\frac{1}{t+2}} \, dt\\\\s(t)=[ln|t+2|]^5_0\\\\s(t)=ln|5+2|+ln|0+2|\\\\s(t)=(ln|7|+ln|2|)\,ft$

3 0

3 years ago

andrew-mc [135]

30 divided by 7 is 4.2z
It snowed 4.2 inches per hour

3 0

2 years ago